Supported formats

Because the use of many audio and video file types is restricted by patents, a third-party application or plugin is required to use them. Firefox, however, is able to play natively open media and some types of patented media and some types of patented media.

Open media

Firefox can play the WAVcontainer format (.wav, .wave file types) containing uncompressed audio in PCM at 8 or 16 bits per sample.